Development Of Fixed Pressure Difference Regulator

In recent years, the sea exploration has been the hot allover in the world, while the development on sea detector is the key its success. The regulation of the pressure difference between the water cabin and the sea water outside the water cabin is one of important factors influencing the sea detector. In last years, the pressure difference regulation was manually operated, which made workers tired and could't reach the regulation target. By now, in China, there are not one kind of automatic pressure difference regulator that could do this.Therefor, it is of significance if we can develop such pressure difference regulator.This thesis mainly deals with the theoretical analysis, design of the project and its structure and simulation.In chapter 1, the research aim and significance are described. Also the state of the art on sea water hydraulic components and gas pressure regulaor in domestic and overseas are introduced. And the design scheme and main tasks are presented.In chapter 2, three principles of pressure difference regulation are designed and described in details, then the feasibilities of them are analysed by simulation.At the end ,the third principle is choosen as the best one.In chapter 3, the design of each components of the pressure difference regulator is introduced, and some main parameters about the regulator are computed.The sealing way is choosen, and cosmos is used to analyse the static force characteristics, which can assure the right of the design.In chapter 4, the erosion essence of metal in sea water is analysed, some main metal and nonmetal material erosionproof characteristics are researched.At the end , the materials of the pressure difference regulator are choosen.In chapter 5, the math model about the pressure difference regulator is established.By the sofeware AMESim,the static and dynatic simulation researches of pressure difference regulator are given. In simulation research, variable parameters and optimum simulation research work for the reguator are done.In chapter 6, some conclusions are drawen and some new views in the future are put forward.